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eeFACT 2025 - 70th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e– Colliders

3–7 Mar 2025
EPOCHAL
Asia/Tokyo timezone

Contacts

Session

Vacuum

WG9
4 Mar 2025, 14:20
300 (EPOCHAL)

300

EPOCHAL

Tsukuba, Japan

Presentation materials

There are no materials yet.

  1. 89. CEPC Vacuum system development progress (TUA08)
    Yongsheng Ma (Institute of High Energy Physics)
    04/03/2025, 14:20
    WG9 : Vacuum
    Invited Oral Presentation

    The vacuum system of the CEPC accelerator comprises the LINAC, Booster, collider rings, and transport lines. The Technical Design Report (TDR) was published in 2024, and the Engineering Design Report (EDR) has been under development since 2024, with reviews by IARC. A production line for massive NEG coating and heating spraying of vacuum chambers will be developed in the next two years to...

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  2. 105. Two instabilities related to vacuum chamber of accelerators (TUA09)
    Oleg Malyshev (Science and Technology Facilities Council)
    04/03/2025, 14:50
    WG9 : Vacuum
    Invited Oral Presentation

    This talk will overview two instabilities in the accelerator’s vacuum chamber that are in a boundary between an accelerator lattice design and solutions for beam vacuum design.

    Ion induced pressure instability is a threat for positively charged beams. Modelling of this potential problem is essential for a proper vacuum design for its mitigation. The modelling requires knowledge of various...

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  3. 91. EIC vacuum system (TUA10)
    Charles Hetzel (Brookhaven National Laboratory)
    04/03/2025, 15:20
    WG9 : Vacuum
    Invited Oral Presentation

    The Electron-Ion Collider (EIC) will be a new, state of the art nuclear physics research facility that is currently approaching the preliminary design milestone. This facility will be built at the US Department of Energy’s Brookhaven National Laboratory located in Upton, New York. The EIC will collide high energy (up to 18 GeV) polarized electrons with polarized protons (up to 275 GeV) and...

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  4. 92. Development of low SEY coating in SuperKEKB (TUA11)
    Mu-Lee Yao (High Energy Accelerator Research Organization)
    04/03/2025, 16:10
    WG9 : Vacuum
    Invited Oral Presentation

    The electron cloud effect (ECE) poses challenges in high-intensity proton and positron rings. A potential solution is to prepare a surface with low secondary electron yield (SEY) on the inner walls of beam pipes.

    In the Low Energy Ring (LER) of SuperKEKB, TiN coating and grooved structures have been applied to reduce the SEY of the beam pipes. From 2017 to 2023, we explored a commercial...

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  5. 170. Status report on the SuperKEKB vacuum system (TUA12)
    Kyo Shibata (High Energy Accelerator Research Organization)
    04/03/2025, 16:40
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